Question

PLEASE HELP The diameter D of a sphere is 19 m. Calculate the sphere's surface area A.

Use the value 3.14 for at, and round your answer to the nearest tenth.

Answer 1

A = 1,133.5 m³

Explanation:

Surface area of a sphere, A = 4πr²

π = 3.14

Radius, r = diameter / 2

= 19 m / 2

= 9.5 m

Surface area of a sphere, A = 4πr²

A = 4 * 3.14 * (9.5)²

= 4 * 3.14 * 90.25

= 1,133.54

A = 1,133.54 m³

To the nearest tenth

A = 1,133.5 m³